Systems and methods for adjustable polarization in service providing terminals

ABSTRACT

Systems and methods are disclosed for adjustable polarization in service-providing terminals. In some embodiments, a system is disclosed that includes a display, an input device, an adjustable polarization screen adjacent to the display, and a polarization adjuster. The system may further include a processor configured to execute instructions to perform operations comprising providing illumination to the adjustable polarization screen through the display, controlling, via the polarization adjuster, a polarization of the adjustable polarization screen to a first polarization, receiving, via the input device, a polarization selection input, and, based on the polarization selection input, adjusting, via the polarization adjuster, the polarization of the adjustable polarization screen from the first polarization to a second polarization.

BACKGROUND

This application claims priority to U.S. Provisional Patent ApplicationSer. No. 62/359,368 filed Jul. 7, 2016, the contents of which are herebyincorporated in their entirety.

BACKGROUND

Many service-providing terminals, such as automated teller machines(ATMs), kiosks, user devices, and other terminals, include a cathode raytube (CRT) or liquid crystal display (LCD) display through which a usermay interact with the service-providing terminal. Information istypically displayed on CRT and LCD displays by illuminating the displaywith non-polarized light, which is selectively polarized by the displayto create images and/or text representing the information.

A user of a service-providing terminal may, in some cases, wearpolarized eyewear, such as sunglasses. The polarization of the user'ssunglasses and the selectively polarized display of theservice-providing terminal may destructively interfere, making itdifficult for the user to view the information displayed on the display.

SUMMARY

The disclosed embodiments may include systems and methods for adjustablepolarization in service-providing terminals.

In one embodiment, a system is disclosed that includes a display, aninput device, an adjustable polarization screen, and a polarizationadjuster, where the adjustable polarization screen is adjacent to thedisplay. The system further includes a memory storing instructions and aprocessor configured to execute the instructions to perform operations.The operations include providing illumination to the adjustablepolarization screen through the display and controlling, via thepolarization adjuster, a polarization of the adjustable polarizationscreen to a first polarization. The operations further includereceiving, via the input device, a polarization selection input and,based on the polarization selection input, adjusting, via thepolarization adjuster, the polarization of the adjustable polarizationscreen from the first polarization to a second polarization.

In another embodiment, a method is disclosed that includes providing adisplay and an adjustable polarization screen adjacent to the display;providing illumination to the adjustable polarization screen through thedisplay; controlling a polarization of the adjustable polarizationscreen to a first polarization; receiving a polarization selectioninput; and, based on the polarization selection input, adjusting thepolarization of the adjustable polarization screen from the firstpolarization to a second polarization.

In yet another embodiment, a non-transitory computer-readable medium isdisclosed storing instructions that, when executed by a processor, causethe processor to perform operations. The operations include providing adisplay and an adjustable polarization screen adjacent to the display;providing illumination to the adjustable polarization screen through thedisplay; controlling a polarization of the adjustable polarizationscreen to a first polarization; receiving a polarization selectioninput; and, based on the polarization selection input, adjusting thepolarization of the adjustable polarization screen from the firstpolarization to a second polarization.

Aspects of the disclosed embodiments may include tangiblecomputer-readable media that store software instructions that, whenexecuted by one or more processors, are configured for and capable ofperforming and executing one or more of the methods, operations, and thelike consistent with the disclosed embodiments. Also, aspects of thedisclosed embodiments may be performed by one or more processors thatare configured as special-purpose processor(s) based on softwareinstructions that are programmed with logic and instructions thatperform, when executed, one or more operations consistent with thedisclosed embodiments.

It is to be understood that both the foregoing general description andthe following detailed description are exemplary and explanatory onlyand are not restrictive of the disclosed embodiments, as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings, which are incorporated in and constitute apart of this specification, illustrate disclosed embodiments and,together with the description, serve to explain the disclosedembodiments. In the drawings:

FIG. 1 is a block diagram of an example system, in accordance withdisclosed embodiments;

FIGS. 2A-2B illustrate example service-providing terminals, inaccordance with disclosed embodiments;

FIG. 3 is an example flow chart illustrating an adjustable polarizationmethod, in accordance with disclosed embodiments;

FIGS. 4A-4B illustrate operation of a service-providing terminal thatdoes not include an adjustable polarization system; and

FIGS. 5A-5D illustrate operation of a service-providing terminal thatincludes an adjustable polarization system, in accordance with disclosedembodiments.

DETAILED DESCRIPTION

Reference will now be made in detail to the disclosed embodiments,examples of which are illustrated in the accompanying drawings.

FIG. 1 is a block diagram of an example system 100, in accordance withdisclosed embodiments. System 100 may include a service-providingterminal 102. While one service-providing terminal 102 is shown, it willbe understood that system 100 may include any number ofservice-providing terminals.

Service-providing terminal 102 may be any device configured for use by auser 104. In some embodiments, service-providing terminal 102 may takethe form of, for example, a device configured to provide a service touser 104, such as an automated teller machine (ATM), a payment orpurchase kiosk, an information kiosk, a point-of-sale device, or otherdevice. Alternatively or additionally, in some embodimentsservice-providing terminal 102 may take the form of a user device, suchas a mobile communication device, a cellular telephone, a smartphone, atablet computer, a laptop computer, a desktop computer, or a wearablecomputing device, such as a watch or glasses. Service-providing terminal102 may take other forms as well. Service-providing terminal 102 isdescribed in further detail below in connection with FIG. 2.

In some embodiments, service-providing terminal 102 may be configured tocommunicate over a network 106. Network 106 may be any type of networkconfigured to provide communications between service-providing terminal102 and one or more other entities. For example, network 106 may be anytype of network (including infrastructure) that provides communications,exchanges information, and/or facilitates the exchange of information,such as the Internet, a Local Area Network, near field communication(NFC), Bluetooth™, Bluetooth LE™ (BLE), WiFi, or other suitableconnection(s) that enables the sending and receiving of informationbetween service-providing terminal 102 and one or more other entities.In other embodiments, service-providing terminal 102 may communicatewith one or more other entities through a dedicated communicationlink(s). Network 106 may take other forms as well.

In some embodiments, service-providing terminal 102 may be configured tocommunicate, through network 106, with a service-providing system 108.Service-providing system 108 may be any system configured to supportservice-providing terminal 102. For example, in embodiments whereservice-providing terminal 102 is an ATM, service-providing system 108may be a financial service provider system configured to supportfinancial services provided by service-providing terminal 102. Asanother example, in embodiments where service-providing terminal 102 isa mobile communication device, service-providing system 108 may be acommunication service provider system configured to supportcommunication services provided by service-providing terminal 102.Service-providing system 108 may take other forms as well.

While one network 106 and one service-providing system 108 are shown, itwill be understood that system 100 may include any number of networksand/or service-providing systems. In some embodiments, for example,service-providing terminal 102 may be a stand-alone device, and nonetwork 106 or service-providing system 108 may be included in system100. System 100 may take other forms as well.

It is to be understood that the configuration and boundaries of thefunctional building blocks of system 100 have been defined herein forthe convenience of the description. Alternative boundaries can bedefined so long as the specified functions and relationships thereof areappropriately performed. Alternatives (including equivalents,extensions, variations, deviations, etc., of those described herein)will be apparent to persons skilled in the relevant art(s) based on theteachings contained herein. Such alternatives fall within the scope andspirit of the disclosed embodiments.

FIG. 2A is a block diagram illustrating an example service-providingterminal 200, in accordance with disclosed embodiments.Service-providing terminal 200 may take any of the forms described abovefor service-providing terminal 102 in connection with FIG. 1.

As shown, service-providing terminal 200 may include an input/outputdevice 202. Input/output device 202 may be any device configured toreceive inputted information and/or provide outputted information. Insome embodiments, input/output device 202 may be configured to receiveinputted information from and/or provide outputted information to a userof service-providing terminal 200.

In some embodiments, input/output device 202 may include a display 204.Display 204 may be any device configured to provide outputtedinformation. In some embodiments, display 204 may take the form of oneor more of a liquid crystal display (LCD), a cathode ray tube (CRT)display, a plasma display, a light-emitting diode (LED) display, or anorganic LED (OLED) display. Display 204 may take other forms as well.

In some embodiments, display 204 may be configured to displayinformation by selectively polarizing non-polarized light provided todisplay 204. For example, display 204 may comprise a number of pixels,each of which includes a layer of liquid crystal between two polarizingfilters. The liquid crystal may be configured to change orientationbased on a provided voltage, and the changed orientation may cause achange in polarization. In this manner, by controlling a voltageprovided to each pixel, display 204 may control the orientation of theliquid crystals in each pixel, thereby selectively polarizing thenon-polarized light. Other polarization methods may be used to alter aviewing angle or visibility of display 204. Operation of display 204 isfurther described below in connection with FIGS. 4A-4B and 5A-5D.

In some embodiments, input/output device 202 may include an input device206. Input device 206 may be any device configured to receive inputtedinformation. In some embodiments, input device 206 may take the form ofa mechanical input, such as a button, knob, or lever. Alternatively oradditionally, in some embodiments input device 206 may take the form ofan electrical input, such as a capacitive, resistive, or optical input.For example, input device 206 may take the form of an infrared inputconfigured to detect movement of a user's hand(s). In some embodiments,input device 206 may take the form of a touch screen, and display 204may be and/or may include the touch screen. Input device 206 may takeother appropriate forms to enable information input by the user.

Service provider terminal 200 may further include an adjustablepolarization system 208, which may include an adjustable polarizationscreen 210 and a polarization adjuster 212. Adjustable polarizationscreen 210 may be any screen configured to modify a polarization ofillumination provided to the adjustable polarization screen 210. In someembodiments, adjustable polarization screen 210 may be similar to an LCDdisplay. Adjustable polarization screen 210 may take other forms aswell. In some embodiments, part or all of adjustable polarization system208 may be built into display 204.

Adjustable polarization screen 210 may be configured such that apolarization of adjustable polarization screen 210 may be controlled bycontrolling a voltage provided to adjustable polarization screen 210. Insome embodiments, for example, adjustable polarization screen 210 maycomprise a number of pixels, each of which includes a layer of liquidcrystal between two polarizing filters. The liquid crystal may beconfigured to change orientation based on a provided voltage, and thechanged orientation may cause a change in polarization. In this manner,by controlling a voltage provided to adjustable polarization screen 210,the orientation of the liquid crystals may be adjusted, therebyadjusting polarization of adjustable polarization screen 210. Operationof adjustable polarization screen 210 is further described below inconnection with FIGS. 4A-4B and 5A-5D.

Polarization adjuster 212 may be configured to control the polarizationof adjustable polarization screen 210. In some embodiments, polarizationadjuster 212 may be configured to control a polarization of adjustablepolarization screen 210 to any value between and including 0° and 90°.In some embodiments, for example, polarization adjuster 212 may beconfigured to control a polarization of adjustable polarization screen210 to a first polarization between and including 0° and 90°. Further,polarization adjuster 212 may be configured to adjust the polarizationof adjustable polarization screen 210 from the first polarization to asecond polarization between and including 0° and 90°. The secondpolarization may be different from the first polarization. Further, thesecond polarization may be non-orthogonal to the first polarization.Other polarizations are possible as well.

In some embodiments, polarization adjuster 212 may include a driverconfigured to control a voltage provided to adjustable polarizationscreen 210. The polarization adjuster 212 may be configured to controlthe adjustable polarization screen 210 to the first polarization by, forexample, controlling the voltage provided to the adjustable polarizationscreen 210 to a first voltage. Further, the polarization adjuster 212may be configured to adjust the adjustable polarization screen 210 fromthe first polarization to the second polarization by, for example,controlling the voltage provided to adjustable polarization screen 210from the first voltage to a second voltage.

In some embodiments, input device 206 may be configured to receive apolarization selection input. For example, a user of service-providingterminal 200 may use input device 206 to select a polarization. In someembodiments, the user may select a polarization by adjusting anappearance of display 204, such as a “brightness” or “contrast.” Forexample, the user may use input device 206 to increase or decrease the“brightness” or “contrast” of display 204. As still another example, thepolarization selection input may be pre-defined for a user, and a usermay select the polarization by, for instance, providing identificationof the user. The polarization selection input may take other forms aswell.

In some embodiments, polarization adjuster 212 may adjust thepolarization of adjustable polarization screen 210 as the polarizationselection input is received. For example, as a user gradually adjusts a“brightness” or “contrast” of display 204 using input device 206,polarization adjuster 212 may gradually adjust the polarization ofadjustable polarization screen 210, thereby adjusting a “brightness” or“contrast” of display 204. Alternatively, in some embodiments,polarization adjuster 212 may adjust the polarization of adjustablepolarization screen 210 after the polarization selection input isreceived. For example, as a user may select an increase in “brightness”or “contrast” of display 204 using input device 206, and, upon receivingthe polarization selection input, polarization adjuster 212 may adjustthe polarization of adjustable polarization screen 210, therebyincreasing the “brightness” or “contrast” of display 204. Thepolarization selection input may take other forms as well.

Processor(s) 214 may include one or more known single or multicoreprocessing devices, such as a microprocessor from the Pentium™ or Xeon™family manufactured by Intel™, the Turion™ family manufactured by AMD™,or any of various processors manufactured by Sun Microsystems, forexample. The disclosed embodiments are not limited to any type ofprocessor(s) otherwise configured to meet the computing demands ofdifferent components of service-providing terminal 200.

Memory 216 may include one or more storage devices configured to storeinstructions used by processor(s) 214 to perform functions related todisclosed embodiments. For example, memory 216 may be configured tostore software instructions, such as program(s) 218, that may causeprocessor(s) 214 to perform one or more operations consistent withdisclosed embodiments. The disclosed embodiments are not limited toseparate programs or computers configured to perform dedicated tasks.For example, memory 216 may store a single program 218 that performs thefunctions of service-providing terminal 200, or program(s) 218 maycomprise multiple programs. Memory 216 may also store data 220 that isused by program(s) 218.

In certain embodiments, memory 216 may store sets of instructions forcarrying out the processes described below in connection with FIG. 3.Other instructions are possible as well. In general, instructions may beexecuted by processor(s) 214 to perform one or more processes consistentwith disclosed embodiments.

The components of service-providing terminal 200 may be implemented ashardware, software, or a combination of both hardware and software, aswill be apparent to those skilled in the art. For example, although oneor more components of service-providing terminal 200 may be implementedas computer processing instructions, all or a portion of thefunctionality of service-providing terminal 200 may be implementedinstead in dedicated electronics hardware.

It will be understood that service-providing terminal 200 may includemore, fewer, or different components than those shown. In someembodiments, service-providing terminal 200 may include additionalcomponents associated with a service provided by terminal 200.Service-providing terminal 200 may take other forms as well.

In some embodiments, service-providing terminal 200 may be configured tocommunicate, through a network, with one or more entities. For example,service-providing terminal 200 may be configured to communicate througha network, such as network 106 described above in connection with FIG.1, with a service-providing system, such as service-providing system108. In some embodiments, service-providing terminal 200 may include anetwork interface 222. Network interface 222 may include, for example,one or more digital and/or analog devices that allow network interface222 to communicate with and/or detect other components, such as anetwork controller and/or wireless adaptor for communicating over theInternet. Network interface 222 may take other forms as well.

FIG. 2B is an illustration of another service-providing terminal 200, inaccordance with disclosed embodiments. While service-providing terminal200 is shown, for purposes of illustration, to take a certain form, itwill be understood that service-providing terminal 200 may take otherforms as well.

As shown, service-providing terminal 200 may include display 204 andinput device 206, as described above. Further, as shown,service-providing terminal 200 may include adjustable polarizationscreen 210. Adjustable polarization screen 210 may be adjacent todisplay 204, as shown. Alternatively or additionally, adjustablepolarization screen 210 may be near, next to, in proximity to, or withina range of display 204. Other positioning of adjustable polarizationscreen 210 and display 204 are possible as well.

In some embodiments, service-providing terminal 200 may further includeillumination source 224 configured to provide illumination to display204. In some embodiments, illumination source 224 may be configured toprovide non-polarized light to display 204. For example, illuminationsource 224 may provide non-polarized light as backlight to display 204.Display 204 may be configured to selectively polarize the non-polarizedlight and provide the selectively polarized light to adjustablepolarization screen 210. In some embodiments, illumination source 224may be built into display 204.

Service-providing terminal 200 may further include polarization adjuster212. In some embodiments, polarization adjuster 212 may becommunicatively coupled to input device 206 and adjustable polarizationscreen 210. Polarization adjuster 212 may be configured to control apolarization of adjustable polarization screen 210 to, for example, afirst polarization by, for example, controlling a voltage provided toadjustable polarization screen 210 to a first voltage, therebycontrolling an orientation of liquid crystals within pixels ofadjustable polarization screen 210.

Further, in some embodiments, input device 206 may be configured receivea polarization selection input from, for example, user 226. Based on thepolarization selection input, polarization adjuster 212 may be furtherconfigured to adjust a polarization of adjustable polarization screen210 from, for example, the first polarization to a second polarizationby, for example, controlling the voltage provided to adjustablepolarization screen 210 from the first voltage to a second voltage,thereby adjusting the orientation of the liquid crystals within thepixels of adjustable polarization screen 210. Service-providing terminal200 may take other forms as well.

FIG. 3 is an example flow chart illustrating an adjustable polarizationmethod 300, in accordance with disclosed embodiments. As shown, method300 may begin at step 302 with providing a display and an adjustablepolarization screen adjacent to the display. The display and theadjustable polarization screen may, for example, take any of the formsdescribed above for display 204 and adjustable polarization screen 210,respectively, in connection with FIGS. 2A-2B.

The method 300 may continue at step 304 with providing illumination tothe adjustable polarization screen through the display. In someembodiments, providing illumination to the adjustable polarizationscreen through the display may involve providing non-polarized light tothe display. The display may be configured to selectively polarize thenon-polarized light and provide the selectively polarized light to theadjustable polarization screen. The illumination may be provided inother manners as well.

The method 300 may continue at step 306 with controlling a polarizationof the adjustable polarization screen to a first polarization. In someembodiments, the polarization of the adjustable polarization screen maybe controlled by a polarization adjuster, such as polarization adjuster212 described above in connection with FIGS. 2A-2B. Alternatively oradditionally, in some embodiments controlling the polarization of theadjustable polarization screen to the first polarization may involvecontrolling a voltage provided to the adjustable polarization screen.The polarization may be controlled in other manners as well.

The method 300 may continue at step 308 with receiving a polarizationselection input. The polarization selection input may be received from,for example, a user. In some embodiments, the polarization selectioninput may be received via an input device, such as input device 206described above in connection with FIGS. 2A-2B. In some embodiments, thedisplay may be or may include a touch screen, and receiving thepolarization selection input may involve receiving the polarizationselection input through the touch screen. The polarization selectioninput may be received in other manners as well.

The method 300 may continue at step 310 with, based on the polarizationselection input, adjusting the polarization of the adjustablepolarization screen from the first polarization to a secondpolarization. In some embodiments, the polarization of the adjustablepolarization screen may be adjusted by a polarization adjuster, such aspolarization adjuster 212 described above in connection with FIGS.2A-2B. Alternatively or additionally, in some embodiments adjusting thepolarization of the adjustable polarization screen from the firstpolarization to the second polarization may involve adjusting a voltageprovided to the adjustable polarization screen from a first voltage to asecond voltage. In some embodiments, the second polarization may benon-orthogonal to the first polarization.

Method 300 may include more or fewer steps than those shown and, in someembodiments, an order of one or more of steps 302-310 may vary.

FIGS. 4A-4B illustrate operation of a service-providing terminal 400that does not include an adjustable polarization system. As shown,service-providing terminal 400 may be configured to provide illumination402 to a display 404. Illumination 402 may be, for example,non-polarized illumination.

Display 404 may include a first polarization filter 406. Whennon-polarized illumination 402 passes through the first polarizationfilter 406, non-polarized illumination 402 may be polarized, resultingin polarized illumination 408. Polarized illumination 408 may be passedthrough liquid crystals 410. Liquid crystals 410 may be, for example,selectively oriented to provide information on display 404. Whenpolarized illumination 408 is passed through liquid crystals 410 and asecond polarization filter 412, polarized illumination 408 may beselectively polarized to produce selectively polarized illumination 414.

When selectively polarized illumination 414 is viewed by a user througha polarized lens 416, the polarizations of the polarized lens 416 andthe selectively polarized illumination 414 may destructively interfere,making it difficult for the user to view the information displayed onthe display 404, as illustrated in FIG. 4B.

FIGS. 5A-5D illustrate operation of a service-providing terminal 500that includes an adjustable polarization system, in accordance withdisclosed embodiments. Like display 404 described in connection withFIG. 4A, display 504 may include a first polarization filter 506 throughwhich non-polarized illumination 502 may pass, resulting in polarizedillumination 508. When polarized illumination 508 is passed throughliquid crystals 510 and second polarization filter 512, polarizedillumination 508 may be selectively polarized to produce selectivelypolarized illumination 514.

Display terminal 500 may further include an adjustable polarizationsystem, which may include an adjustable polarization screen 516 and apolarization adjuster 518 configured to control a polarization of theadjustable polarization screen 516. The selectively polarizedillumination 514 may pass through the adjustable polarization screen 516before being viewed by a user through a polarized lens 522. Adjustablepolarization screen 516 may have, for example, a first polarization,resulting in first selectively polarized illumination 520.

In some cases, when first selectively polarized illumination 520 isviewed by a user through a polarized lens 522, the polarizations of thepolarized lens 522 and the first selectively polarized illumination 520may destructively interfere, making it difficult for the user to viewthe information displayed on the display 504, as illustrated in FIG. 5C.Use of the adjustable polarization system, however, may enable the userto adjust a polarization of the adjustable polarization screen 516 toimprove the user's ability to view the information displayed on thedisplay 504.

As shown in FIG. 5B, for example, a user may adjust a polarization ofthe adjustable polarization screen 504 from the first polarization to asecond polarization. To this end, the user may, for example, provide apolarization selection input to an input device 524 at service-providingterminal 500. For example, the user may select to increase a“brightness” or “contrast” of display 504. Other polarization selectioninputs are possible as well.

Based on the polarization selection input, the polarization adjuster 518may adjust the polarization of the adjustable polarization screen 516from the first polarization to a second polarization, as shown, by, forexample, adjusting a voltage provided to the adjustable polarizationscreen 516. The second polarization may be non-orthogonal to the firstpolarization.

When selectively polarized illumination 514 passes through theadjustable polarization filter 516, second selectively polarizedillumination 526 may result. Second selectively polarized illumination526 may have a different polarization than first selectively polarizedillumination 520. In some cases, when second selectively polarizedillumination 526 is viewed by the user through a polarized lens 522, thepolarizations of the polarized lens 522 and the second selectivelypolarized illumination 526 may not destructively interfere or maydestructively interfere less, making it easier for the user to view theinformation displayed on the display 504, as illustrated in FIG. 5D. Inthis manner, the adjustable polarization system may enable the user toadjust a polarization of the adjustable polarization screen 516 toimprove the user's ability to view the information displayed on thedisplay 504.

In some examples, some or all of the logic for the above-describedtechniques may be implemented as a computer program or application or asa plug-in module or subcomponent of another application. The describedtechniques may be varied and are not limited to the examples ordescriptions provided.

Moreover, while illustrative embodiments have been described herein, thescope thereof includes any and all embodiments having equivalentelements, modifications, omissions, combinations (e.g., of aspectsacross various embodiments), adaptations and/or alterations as would beappreciated by those in the art based on the present disclosure. Forexample, the number and orientation of components shown in the exemplarysystems may be modified. Further, with respect to the exemplary methodsillustrated in the attached drawings, the order and sequence of stepsmay be modified, and steps may be added or deleted.

Thus, the foregoing description has been presented for purposes ofillustration only. It is not exhaustive and is not limiting to theprecise forms or embodiments disclosed. Modifications and adaptationswill be apparent to those skilled in the art from consideration of thespecification and practice of the disclosed embodiments.

The claims are to be interpreted broadly based on the language employedin the claims and not limited to examples described in the presentspecification, which are to be construed as non-exclusive. Further, thesteps of the disclosed methods may be modified in any manner, includingby reordering steps and/or inserting or deleting steps.

Furthermore, although aspects of the disclosed embodiments are describedas being associated with data stored in memory and other tangiblecomputer-readable storage mediums, one skilled in the art willappreciate that these aspects can also be stored on and executed frommany types of tangible computer-readable media, such as secondarystorage devices, like hard disks, floppy disks, or CD-ROM, or otherforms of RAM or ROM. Accordingly, the disclosed embodiments are notlimited to the above described examples, but instead is defined by theappended claims in light of their full scope of equivalents.

1. A system, comprising: a display; an input device; a polarizationadjuster; an adjustable polarization screen adjacent to the display; amemory storing instructions; and a processor configured to execute theinstructions to perform operations comprising: providing illumination tothe adjustable polarization screen through the display; controlling, viathe polarization adjuster, a polarization of the adjustable polarizationscreen to a first polarization; receiving, via the input device, apolarization selection input; and based on the polarization selectioninput, adjusting, via the polarization adjuster, the polarization of theadjustable polarization screen from the first polarization to a secondpolarization.
 2. The system of claim 1, wherein the system is embeddedwithin an automated teller machine.
 3. The system of claim 1, comprisinga user device.
 4. The system of claim 1, wherein the display comprises aliquid crystal display.
 5. The system of claim 1, wherein the adjustablepolarization screen comprises a liquid crystal display.
 6. The system ofclaim 1, wherein at least one of the input device and the displaycomprises a touch screen.
 7. The system of claim 1, wherein: providingillumination to the adjustable polarization screen through the displaycomprises providing non-polarized light to the display; and the displayis configured to selectively polarize the non-polarized light andprovide the selectively polarized light to the adjustable polarizationscreen.
 8. The system of claim 1, wherein the polarization adjustercomprises a driver configured to provide an adjustable voltage to theadjustable polarization screen.
 9. The system of claim 1, wherein thesecond polarization is non-orthogonal to the first polarization.
 10. Amethod comprising: providing a display and an adjustable polarizationscreen adjacent to the display; providing illumination to the adjustablepolarization screen through the display; controlling a polarization ofthe adjustable polarization screen to a first polarization; receiving apolarization selection input; and based on the polarization selectioninput, adjusting the polarization of the adjustable polarization screenfrom the first polarization to a second polarization.
 11. The method ofclaim 10, wherein: the display comprises a touch screen; and receivingthe polarization selection input comprises receiving the polarizationselection input through the touch screen.
 12. The method of claim 10,wherein: providing illumination to the adjustable polarization screenthrough the display comprises providing non-polarized light to thedisplay; and the display is configured to selectively polarize thenon-polarized light and provide the selectively polarized light to theadjustable polarization screen.
 13. The method of claim 10, whereincontrolling the polarization of the adjustable polarization screen tothe first polarization comprises controlling a voltage provided to theadjustable polarization screen.
 14. The method of claim 10, whereinadjusting the polarization of the adjustable polarization screen fromthe first polarization to the second polarization comprises adjusting avoltage provided to the adjustable polarization screen from a firstvoltage to a second voltage.
 15. The method of claim 10, wherein thesecond polarization is non-orthogonal to the first polarization.
 16. Anon-transitory computer-readable medium storing instructions that, whenexecuted by a processor, cause the processor to perform operationscomprising: providing a display and an adjustable polarization screenadjacent to the display; providing illumination to the adjustablepolarization screen through the display; controlling a polarization ofthe adjustable polarization screen to a first polarization; receiving apolarization selection input; and based on the polarization selectioninput, adjusting the polarization of the adjustable polarization screenfrom the first polarization to a second polarization.
 17. Thenon-transitory computer-readable medium of claim 16, wherein: providingillumination to the adjustable polarization screen through the displaycomprises providing non-polarized light to the display; and the displayis configured to selectively polarize the non-polarized light andprovide the selectively polarized light to the adjustable polarizationscreen.
 18. The non-transitory computer-readable medium of claim 16,wherein controlling the polarization of the adjustable polarizationscreen to the first polarization comprises controlling a voltageprovided to the adjustable polarization screen.
 19. The non-transitorycomputer-readable medium of claim 16, wherein adjusting the polarizationof the adjustable polarization screen from the first polarization to thesecond polarization comprises adjusting a voltage provided to theadjustable polarization screen from a first voltage to a second voltage.20. The non-transitory computer-readable medium of claim 16, wherein thesecond polarization is non-orthogonal to the first polarization.